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Btrfs: fix mutex unlock without prior lock on space cache truncation
authorFilipe Manana <fdmanana@suse.com>
Thu, 30 Apr 2015 16:47:05 +0000 (17:47 +0100)
committerChris Mason <clm@fb.com>
Wed, 3 Jun 2015 02:34:34 +0000 (19:34 -0700)
commit35c766425adc8e6cd1bdc8554fa540364f218fb7
tree390f8b66884310a7c9531275425af2e467f8eb4etree | snapshot (tar.gz zip)
parent816fcebe8f41051b29970e5baed4d4afe462d8a8commit | diff
Btrfs: fix mutex unlock without prior lock on space cache truncation

If the call to btrfs_truncate_inode_items() failed and we don't have a block
group, we were unlocking the cache_write_mutex without having locked it (we
do it only if we have a block group).

Fixes: 1bbc621ef284 ("Btrfs: allow block group cache writeout
                      outside critical section in commit")

Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <clm@fb.com>
fs/btrfs/free-space-cache.c diff | blob | blame | history